<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./css/test.css">
    <style type="text/css">
        @import url("./css/test2.css");
        h1 {
            color: red;
        }
    </style>
</head>
<body>
    <h1>内部样式表测试</h1>
    <h2 style="color: blue;">内联样式测试</h2>
    <h3>外部样式表测试</h3>
    <p>外部样式表测试2</p>
</body>
</html>